高原气候条件下进行大运动量训练对长跑运动员身体机能的影响

<正> 研究高原气候和高原训练对于人体机能的影响,这对阐明人体的适应机制和合理地安排高原训练都有一定意义。高原气候和高原训练对于人体机能的影响,国内外曾进行了大量的研究。上海生理研究所报导6名青工在2600米高原上

THE EFFECT OF INTENSIVE TRAINING ON PHYSIOLOGICAL FUNCTIONS OF DISTANCE RUNNERS AT 1,895 METRES ALTITUDE

Observations were made of the effect of intensive training at altitude on physiological functions of 28 runuers.When they first reached the altitude their heart rate at rest increased by 17. 7%. hemoglobin by 4. 7%,pulmonary ventilation (ATPS) by 18. 6%, and oxygen intake by 5. 5%; 43% of the runners showed highleft-ventricular voltage in ECG. Most indexes returned to flatland levels in 1--2 weeks; The Vo_2 max. of thebest-trained runners remained unchanged, wbile that of less-trained ruuners decreased by 10% at 1.895 me-tres. At altittide, significant increase of maximal pulmonary ventilation (ATPS) was an importannt factor inmaintaining the same Vo_2 max. as on flatland. After 3 months' training at altitude, Vo_2 max. increasedby 5% on the average, maximal pulmonary ventilation by 13-20%, and vital capacity by 7%. As a result ofimproper load in the initial stage of altitude training, the abonormal ECG was registeted in many runuers.Hematuria after training sessions and competitions was found in 46. 4% of the 28 subjects including 32. 1%macroscope hematuria.